Modding releases for Ixian Revenge use "Hard" designations for AI-altering files that increase enemy reinforcement speed and base defenses. 3. Historical and Media Archives
The format supports advanced data compression, error correction, and "file spanning" (splitting one large archive into multiple smaller parts). HARD.rar
Archives such as the Quake 2 Mission Pack Collection on the Internet Archive include files named Die Hard.rar or similar variations. Modding releases for Ixian Revenge use "Hard" designations
Any file ending in .rar , including "HARD.rar", is a . HARD.rar
Community forums for The Witcher mention a mod called "Flash Mod" where the attachment easy=medium=hard.rar was used to distribute difficulty-adjustment files.